Preparation method of colorful building integrated photovoltaics (BIPV) thin-film solar cell

Abstract

The invention discloses a preparation method of a colorful building integrated photovoltaics (BIPV) thin-film solar cell. The preparation method comprises the following steps: S1, ultra-clear float glass is taken as a glass substrate, dirt on the surface of the glass substrate is removed, and the surface of the glass substrate is activated; S2, a transparent conducting layer is deposited on the top face of the glass substrate through a grazing angle magnetron sputtering process, the transparent conducting layer serves as a colorful functional layer, and as for the colorful functional layer, acomposite film layer is composed of three or more layers of thin films; S3, a buffer layer is deposited on the top face of the colorful functional layer through the magnetron sputtering process; S4, an absorption layer is deposited on the top face of the buffer layer through the magnetron sputtering process, and a CdTe thin film is adopted as the absorption layer; S5, a back contact layer is deposited on the top face of the absorption layer through the magnetron sputtering process; and S6, a protective layer is deposited on the top face of the back contact layer through the magnetron sputtering process, an Au, Zn, Pt, Zr or Ti thin film is adopted as the protective layer, and the colorful BIPV thin-film solar cell is obtained. The cell structure can carry colors, and meanwhile the overallstructure and performance of the thin-film solar cell are guaranteed.

Description

technical field [0001] The invention relates to the technical field of thin-film solar cells, in particular to a method for preparing colorful BIPV thin-film solar cells. Background technique [0002] Building Integrated Photovoltaics (BIPV: Building Integrated Photovoltaics) is a new concept of applying solar power generation: combining building materials on the outer surface of the building maintenance structure to form a combination of photovoltaics and buildings, and photovoltaic power generation provides electricity. [0003] At present, the integration of green and intelligent power generation systems in buildings has become the consensus of all countries and is also the trend of building development. According to the "Building Energy Conservation and Green Building Development Plan", my country's ultra-low energy consumption and near zero energy consumption building projects will reach more than 10 million square meters by 2020. BIPV is a key technical factor to solv...

AI Technical Summary

Problems solved by technology

[0005] However, the colored BIPVs that exist in the market all add single-layer or multi-layer colored functional layers inside or outside the thin-film solar cell cover plate, or use chemical coloring methods, which obviously increases the production steps, increases the cost, and loses the battery life. Photoelectric conversion efficiency; the present invention will endow the thin-film solar cell itself with color, while ensuring the overall performance of the thin-film solar cell

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